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Página 128
C = Density range recorded by conventional system ECM = Full density range of the original radiograph compressed into the linear portion of the curve by Electronic Contrast Modulation . E D 1 01 2 c - ECM X - ray Image Fig . 1.
C = Density range recorded by conventional system ECM = Full density range of the original radiograph compressed into the linear portion of the curve by Electronic Contrast Modulation . E D 1 01 2 c - ECM X - ray Image Fig . 1.
Página 127
... shade of grey having a potential meaning to the trained eye of the radiologist , and therefore no significant degradation can be accepted . The inability of conventional microfilm systems to record the full density range does not ...
... shade of grey having a potential meaning to the trained eye of the radiologist , and therefore no significant degradation can be accepted . The inability of conventional microfilm systems to record the full density range does not ...
Página 240
Before leaving readers and reader - printers for the complex and highly priced end of the range of micrographics equipment , an interesting enlarger - printer from 3M should be mentioned . The model 624 is designed to print on plain ...
Before leaving readers and reader - printers for the complex and highly priced end of the range of micrographics equipment , an interesting enlarger - printer from 3M should be mentioned . The model 624 is designed to print on plain ...
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accepted activities addition applications archival areas Association become Britain British catalogue changes collection colour communication contains copies Corporation cost cover disc disk documents edition electronic equipment existing fiche field filing film format frame important industry interest International issue journal laser librarians Library light London MAGB magnetic major material means medium meeting microfiche microfilm microform micrographics micropublishing offer on-line operation optical organisation original Pergamon Press period positive possible present printed problems produced programme publication published range reader reading records reference reports retrieval Review signal standard storage tape unit University video disc